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The study is performed to consider the effect of thiamine supplementation on symptoms and signs of patients with heart failure and systolic and diastolic function of left ventricle.
The study is performed to consider the effect of thiamine supplementation versus placebo on symptoms and signs of patients with heart failure systolic and diastolic function of left ventricle.
Heart failure patients (left ventricular ejection fraction (LVEF ≤ 40%) are randomized to receive tablets of 300mg or placebo for 1 months in a double-blind fashion. All subjects will be on stable optimal medical therapy according to the present guidelines for at least 3 months before enrolment. At randomization and at study end, echocardiography by a single observer will be performed and assessment of symptoms and signs and quality of life based on self scoring system (from 1 to 7) and objective physical examinations will be done.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Thiamine | Experimental | Thiamine tablets of 300mg are prescribed for 1 months |
|
| Plascebo | Placebo Comparator | Tablets of 300mg placebo are prescribed for 1 months |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Thiamine | Drug | 300 mg daily for 30 days |
|
| Measure | Description | Time Frame |
|---|---|---|
| Dyspnea score | scores are given by the patients from 1 to 7 to dyspnea and are reevaluted after 30 days of intervention | 30 days |
| Measure | Description | Time Frame |
|---|---|---|
| Edema score | Edema is scored 1 to 7 by a physician and reevaluated 30days later after intervention | 30 days |
| Systolic function | ejection fraction, lateral and septal Sm wave (measured by tissue doppler) are evaluetad by echocardiography before and after intervention. |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Mehdi Mousavi, Cardiologist | Azad university | Study Chair |
| Said Namazi, MD | Azad university | Study Director |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of medicine, Azad university | Shahrood | Semnan Province | Iran |
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| ID | Term |
|---|---|
| D006333 | Heart Failure |
| ID | Term |
|---|---|
| D006331 | Heart Diseases |
| D002318 | Cardiovascular Diseases |
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| ID | Term |
|---|---|
| D013831 | Thiamine |
| ID | Term |
|---|---|
| D013844 | Thiazoles |
| D013457 | Sulfur Compounds |
| D009930 | Organic Chemicals |
| D001393 | Azoles |
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| 30 days |
| D006573 |
| Heterocyclic Compounds, 1-Ring |
| D006571 | Heterocyclic Compounds |
| D011743 | Pyrimidines |